The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Jan. 10, 2013
Sumitomo Chemical Company, Limited, Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Nobuhiko Akino, Ibaraki, JP;
Taichi Abe, Ibaraki, JP;
Hideo Konno, Ibaraki, JP;
Shigeru Shimada, Ibaraki, JP;
Kazuhiko Sato, Ibaraki, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A highly stable metal complex useful for the manufacture of a light-emitting device has an excellent lifetime property, particularly in a blue region, specifically a metal complex represented by Formula (1): wherein M is a metal atom; each Rindependently represents a divalent linking group; i and j each independently represent 0 or 1; R, R, R, R, Rand Reach independently represent a hydrogen atom and the like, with a proviso that at least one of R, R, R, R, Rand Ris a dendron; m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n is 2 or 3; and the portion represented by Formula (2): represents a bidentate ligand; wherein Rand Rare an atom bonding to the metal atom M, and each independently represents a carbon atom and the like.